Cull extraneous whitespace.

One last flurry with the broom before I leave you slobs to code
in your own filth. Eliminated all the trailing whitespace I
could manage, with special prejudice reserved for the test cases
which depended on the preservation of trailing whitespace.

Was reminded I cannot figure out how to eliminate the trailing
space on the "scala> " prompt in repl transcripts. At least
reduced the number of such empty prompts by trimming transcript
code on the way in.

Routed ConsoleReporter's "printMessage" through a trailing
whitespace stripping method which might help futureproof
against the future of whitespace diseases. Deleted the up-to-40
lines of trailing whitespace found in various library files.

It seems like only yesterday we performed whitespace surgery
on the whole repo. Clearly it doesn't stick very well. I suggest
it would work better to enforce a few requirements on the way in.

1 files changed, 4 insertions, 4 deletions

diff --git a/test/files/pos/t802.scala b/test/files/pos/t802.scala
index 124d4915bc..2dea7036d6 100644
--- a/test/files/pos/t802.scala
+++ b/test/files/pos/t802.scala
@@ -1,17 +1,17 @@
 package test;
 trait Test {
-  abstract class BracesImpl { 
+  abstract class BracesImpl {
     type Singleton;
     type Brace <: Singleton with BraceImpl;
-    trait BraceImpl; 
+    trait BraceImpl;
     trait ForFile;
   }
-  abstract class ParensImpl extends BracesImpl { 
+  abstract class ParensImpl extends BracesImpl {
     type Brace <: Singleton with BraceImpl;
     trait BraceImpl extends super.BraceImpl;
   }
   val parens : ParensImpl;
-  abstract class BracksImpl extends BracesImpl { 
+  abstract class BracksImpl extends BracesImpl {
     type Brace <: Singleton with BraceImpl;
     trait BraceImpl extends super.BraceImpl;
   }